#!/bin/bash

set -ex

if ! command -v curl &> /dev/null; then
	echo >&2 'error: "curl" not found!'
	exit 1
fi

if ! command -v tar &> /dev/null; then
	echo >&2 'error: "tar" not found!'
	exit 1
fi

if [[ "${CMAKE_VERSION}" == "" ]]; then
  echo >&2 'error: CMAKE_VERSION env. variable must be set to a non-empty value'
  exit 1
fi

cd /tmp

filename=cmake-${CMAKE_VERSION}-Centos5-x86_64
url=https://github.com/dockbuild/CMake/releases/download/v${CMAKE_VERSION}/${filename}.tar.gz
echo "Downloading $url"
curl -# -LO $url

tar -xzvf ${filename}.tar.gz
rm -f ${filename}.tar.gz

cd ${filename}

rm -rf doc man
rm -rf bin/cmake-gui

find . -type f -exec install -D "{}" "/usr/{}" \;